Hafenstraße is a street in St. Pauli, a quarter of Hamburg, Germany, known for its legalized squats. The squats were occupied in 1981 and became a figurehead for autonomist and anti-imperialist politics. After a prolonged battle with the city council which involved demonstrations of over 10,000 people, the buildings were legalized in the 1990s. Today they are owned by a self-organised cooperative.

St. Pauli is a quarter of the city of Hamburg belonging to the centrally located Hamburg-Mitte borough. Situated on the right bank of the Elbe river, the nearby Landungsbrücken is a northern part of the port of Hamburg. St. Pauli contains a world-famous red-light district around the iconic Reeperbahn area. As of 2020 the area had 21,902 residents.